Just because Eliot Spitzer will co-host a primetime show on CNN doesn’t mean he’s given up his dream of a political comeback. Sources say the disgraced ex-governor, who had to quit once he was revealed to be a regular customer of prostitutes, sees the TV gig as a way to repair his reputation. “He thinks that after he’s on air a few months, he’ll become a familiar face and the scandal will fade away,” said an insider. But upstate voters are less forgiving, and Spitzer knows he can’t win a statewide office. “His plan is to run for mayor when Mike Bloomberg‘s third term ends in 2013,” our source said.